Investigation of the effect of tufts contribution on the in-plane mechanical properties of flax fibre reinforced green biocomposite

Abstract Traditional laminated composites have fibres oriented only in the in-plane of laminate due to their manufacturing process, and are therefore very susceptible transverse cracking delamination from out-of-plane actions. Delamination can considerably reduce load bearing capacity a structure hence several reinforcement solutions, based on principle add 2D fabric, been explored enhance resistance. However, usual textile technologies for Z-reinforcement such as weaving, knitting, stitching, z-pinning, tufting generates perturbations that may alter mechanical properties. Although is single needle thread one side stitching (OSS) technique which incorporate almost tension free through thickness material, various types microstructural defects be created during process lead degradation properties composite. Moreover, awareness environmental concerns, development use eco-friendly biocomposites replace synthetic ones has increasing. This research work investigates effect plane adding (TTR) by flax composite improve transversal strength. The glass fibre tufted laminates 550 g/m 2 were moulded using 38% biobased thermoset resin vacuum bag transfer moulding (VBRTM). un-tufted green biocomposite determined tension, compression shear accordance with ASTM 3039, D7137 EN ISO 14130, universal INSTRON 1186 MTS 20 M testing machines. quantification established reduction tensile properties, tufting, whereas effects marginal compression. As expected, tufts strength connection between core skin so interlaminar strength, deduced flexural tests small span-to-thickness ratio, increased. Thanks Digital Image Correlation (DIC) performed tests, an increase modulus highlighted.